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Add some boom to your room

Add serious low-frequency impact to your movies and music with Polk's PSW108. This powered subwoofer delivers solid, accurate bass thanks to its 50-watt RMS amp and 10" woofer. The cabinet is constructed from non-resonant MDF, and is reinforced with internal bracing for superior bass clarity. The PSW108 is a great way to round out a home theater system or add depth to your stereo music without breaking the bank.

Flexible inputs and controls

Polk makes it easy to integrate the PSW108 with your existing system. You can hook your receiver up to the sub either through the line-level or the speaker-level connections. The continuously variable low-pass crossover lets you dial in the sound to match the PSW108 to the rest of your speakers. And a phase switch lets you tweak the sub's output for more precise bass response.

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

Product Research

Features

Klippel Optimized Woofer: By using a state-of-the-art Klippel
Distortion Analyzer, Polk is able to optimize the woofer's motor structure, voice
coil alignment and suspension for the best possible performance even at extreme
listening levels.

Motor Structure: The PSW108 utilizes a powerful motor structure
for a higher BL responses (the measure of the motive force applied to the cone) that
results in louder, deeper and punchier bass.

Amplifier: The subwoofer is powered by a high-current amplifier
producing 50 watts RMS/100 watts dynamic power that supplies clean power for loud
bass and a wide dynamic range necessary to recreate a life-like experience in your
home.

Enclosure: The PSW108 features a bass-reflex enclosure with
non-resonant MDF construction and internal bracing for deep bass impact with
superior detail and accuracy. The Polk Audio PSW108 is available in a black
wood-grain vinyl-wrapped finish.

Front-Firing Port: The powered subwoofer's front firing port
allows the woofer to be extremely efficient and provides more bass impact for your
home theater experience.

Not Video Shielded: The subwoofer is not magnetically shielded,
so it is not recommended to place it next to tube TVs and video monitors. Though
LCD, DLP and Plasma televisions are not affected by magnetism you should allow at
least 18" of space between the subwoofer and any TV.

Placement: You may place the subwoofer anywhere in your room,
but it will perform best when it's on the same side of the room as your system's
front speakers. Also, placing the subwoofer near a wall or in a corner will increase
its loudness.

Controls

Power Switch: The subwoofer has a 2-way power switch on the
rear panel. When On/Auto is selected, the subwoofer turns on automatically when
an input signal is received and off 15 minutes after the signal stops. The LED power indicator
glows green when the unit is on and red when the unit is off.

Volume Control: The PSW108 has a rotary volume control to adjust
the volume of the subwoofer relative to the other speakers in the system.

Phase Switch: The subwoofer's phase switch allows you to select
0-degrees (normal) or 180-degrees (reverse). If the bass sounds muddy or unclear,
toggling the phase control can sometimes strengthen the bass attack.

Connections

Line Inputs: The PSW108 has gold plated left and right RCA
line level inputs. If your receiver or processor has a single subwoofer line
output, you can connect it to either the left or right line input jack.
For receivers having subwoofer or stereo
preamp outputs that do not contain their own low-pass crossover, the PSW108 will
handle the low-pass filtering. If the
receiver's subwoofer output or "LFE" output has a built-in low-pass filter, the
PSW108's low-pass control should be turned fully clockwise (160Hz).

Note: The PSW108 does not have a dedicated LFE input.

Speaker Level Input/Output: The subwoofer has spring clips
for the speaker level inputs and outputs. The subwoofer's low-pass filter sends
bass frequencies (based on the setting of the filter) to the subwoofer. The
speaker level inputs and outputs are shorted together, so the output is not
crossed over. You should set you receiver's front speaker setting to Large.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to
find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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Polk Audio PSW108

Hi Crutchfield and viewing customers. I would like to first say Happy Holidays to all. MY resent purchase of the Pork Audio powered sub speakers (two). of them The price was great. Smiling.. Most of all the sound quality is everything I wanted to have. The casing of the box is appealing and the size for the sound of Bass is shocking.. Delivery of Bass is what i wanted and is what I've received with these Subwoofers.... A little secret.. I exchanged both of my Bose subs for these Pork Audio subs. If you don't tell i want tell. Have a great Evening. Thanks again to Crutchfield..

Do not let the price fool you

Written By Steeda46, Leander, TX on Monday, December 08, 2014

Do not let the price fool you. I have had this subwoofer for a few years and recently decided to use it again in lieu of purchasing a new one for my home theater - very happy I save the money. This unit delivers awesome sound and keeps up with the fast paced movies.

Perfect for the DIY'er - 5.2 Ch System

Great product for the money. I have this hooked up to an Onkyo 5.2 ch surround in my living room which is all tile floors (ceiling speakers @ 10 ft). Sound is perfect with little to no reverb. I combined this sub with PolkRC 80i (2 Fronts), RC60i (2 Rear) and an MC80 (Center). Great "bang for the buck". Recommend this to anyone who is looking for a level right below theatre HD quality.

Good subwoofer for small systems and rooms

This subwoofer works well with my small AudioEngine speakers and desktop computer -- really gives some bottom end that desktop speakers just can't provide. I chose a smaller system for my desktop because if you are working you just don't need to be knocked over with sound. With this combo, you can keep volume levels low and still get good fidelity.

Pros:Plugs right in, good fit, great sound for its size. Not a gamer, but sound holds up fine if you want to crank it up for movies or music videos.

Cons:might be a little meek in thunder dept, you will need something bigger for a larger room.

Great Sub

This replaced a worn out infinity 50 watt sub in a bedroom. Simple installation & setup in 5.1 system was simple.

Pros:Lots of rumble out of a small unit. This sub would work well in a larger room too. The sub this replaced was down firing and I like to front facing speaker much more. So far I am very pleased with this sub.

Cons:The speaker is lite, not sure if this will last as long as the infinity that was 13 years old. The unit was delivered in a very damaged box and had some cosmetic damage. This was done by UPS shipping and Crutchfield worked with me and provide 2 acceptable solutions.

Here comes the boom

Great value for the money, If you need a sub for a surround sound system this will work fine

Pros:Great value and excellent sound

Cons:For those who have no neighbors and no glass in the house it will not shake the entire house, not enough power, yet this sub adds exceptional bass and bottom end to movies and in house surround sound system

Wonderful Sub

I was able to purchase this product from Crutchfield for an unbelievable price and it arrived in just a day. I was pleased to be able to refer to Crutchfield's information on the use of sub's within a Home Theater system as this assisted in my purchase. This sub is excellent. Very tight bass and sounds great with movies as well as classic rock when I want to relax to some music. I have a pair of vintage floor standing Advent front speakers and this Polk sub takes on those low frequencies allowing my Advents to sound brand new. I love this sub and you can't beat Polk for warranty with a five year warranty on a speaker. I am purchasing an additional one as well.

Pros:Extremely affordable, tight, accurate bass, easy set up

Cons:I could sure use a line out on the back of the sub in order to "chain" a second sub to this one.

Installed easily

Bought this as a simple add on to a Polk system that already had 5 speakers but no sub. This seems to put out just enough to get the lower bass without overpowering the room. Haven't not yet explored some higher bass settings.

Love it! Great price great sound!

I love this sub! I was looking for something inexpensive that would provide some great bass for movies and music. I already have Polk audio in wall and in ceiling speakers so this was the perfect addition.

Polk PSW108 Subwoofer Does the Trick

After purchasing a pair of Polk TSi 300 floor standing speakers (which have a decent sound on their own) a year ago, I wanted something that would round out my surround sound system and add just that extra base in a small living room. The PSW108 added just enough to enhance both the surround sound as well as standard stereo music, without a major $ investment on my part. It makes the system sound great in a small space and does not overwhelm the base. If I ever move the system to the larger room, I'll try the PSW108 first but may need to upgrade to a higher wattage sub. However for the space I have right now, it's perfect.

As always, Crutchfield's customer service was exceptional helping me navigate the purchase using 4 different gift cards. I liked the free shipping and having the sub delivered to my doorstep in just 2 1/2 business days.

Outstanding product

Easy plug n play sub to complete my home theater system. I have a open living room that flows into a open dining and kitchen area. Im able to watch movies, sports, and listen to music in all areas and the sub fills the house with awesome sound. Wife isnt very happy but so far its been excellent for movies and all types of music. I listen to hard rock and old school rap and I have yet to exceed its capabilities. Very pleased.

Polk Audio PSW 108

Very nice sub,I was looking for deep rich bass not too powerful but that perfect blend to match a pair of Bose 901's. Also along with with that combo is a stereo receiver the very best in the world NAD 725Bee awesome!

Polk Center Channel Speaker CS10

Written By 31Voldog, Cleveland, TN on Saturday, January 11, 2014

Well worth the money. Vocals and all high end sounds are clear and crisp. Using controls on Onkyo NR509 allows various adjustments to fine-tune to anyone's preference. Must have for home theater, but enhances music as well.

Great Budget Subwoofer

Written By PureDark, Taber, AB on Monday, January 06, 2014

For what it is and for the price this sub is amazing. I have it paired with two Polk Audio M20's ($130CAN on sale) and they are a wonderful match. I am running them off a Cambridge Audio C500/P500 so the source is solid. I wired it through the high level inputs and set the crossover to 80hz. It meets the M20's wonderfully in my small room. You may read complaints about not enough punch or distortion but for under $100 the sub does very well. During movies I can feel the thunder and for jazz, classical, and rock it it very smooth.

Pros:Great price (only buy if it's on sale)
Great sound for it's price
Input options (high level and two channel line level)
Auto-on/off

Totally awesome product!!

If you have a nice system , and do not have a subwoofer , you are missing out. The Polk Audio is the best thing I could have done for my system , the sound is truly incredible, I have some JBL bookshelf speakers and this thing fits in with them perfectly. You can adjust the settings easily and I do not suggest this for anyone living in an apartment with close neighbors. The house will shake when this thing is kicking, for real...

More Than I Expected

I have replaced an Optimus (Radio Shack) sub. No controls. Attach the wires and what you get is what you get. The PSW108 is awesome! I am using Polk bookshelf speakers. Since the PSW108 is powered, it's not a problem adjusting the sub to match the speakers. The PSW108 could easily accommodate much larger speakers. The sub "sleeps" after you shut down the audio and comes right back on when it senses audio. It's a feature I like. I've always thought audio equipment is a bargain. Twenty years ago, you wouldn't be able to find a sub of this quality for $180. Describing how music sounds is difficult. Let's just say there is butt kicking bass that is not out of place. Rock 'n' roll is wonderful and some jazz albums have extraordinary low passages. Movie soundtracks are the killer. When a door slams, you feel like you're in the room. When that music comes on, Sally Jo is going to be sorry she walked in the room. You can feel it. There are times I like to make the walls shake, but when the music is turned down low, the PSW108 is still working. At low listening levels, you still get everything. I'm impressed.

Great Subwoofer

I connected this to a Denon 1913 AV Receiver and Amp, Center Speaker and 4 ceiling mounted speakers. The Audyssey automatic tuning did a great job of identifying one speaker connected backwards and then equalizing speaker and room. The subwoofer really can tick the wife off . . . not intended but what can I say.

Awesome

Completely Polk!

Written By Josh, Winnipeg Manitoba on Friday, April 19, 2013

Picked up 2 of these to complete my surround hooked up to onkyo nr-616 and Polk in wall speakers all around. Very happy that I found these subs now any movie watched on the big screen is worth mentioning.

Good Vibrations

Wow! This little sub cranks out some low frequency. I recently purchased this sub, paired with an Onkyo TX-8255 receiver and a set of Polk TL1 Blackstone bookshelf speakers. I'm seriously impressed with the sound. I'm on a budget, so for the price I certianly got my money's worth. Glad I don't live in an apartment.

Pros:clean lows, loud, no distortion.

Cons:It's pretty big. if you have a small space you'll be struggling to find room.

awseme

great sound easy setup i live in an apartment so cant crank it too much but when i do it rocks .great sound at lower volume.was free with my speakers cant beat that price.thought it would be trash for free but i love it. thanks again crutchfield

Good bas, seems solidly built

Looks nice, puts out good bas. I don't know much about two inputs like this one has, but my advisor said I could hook the single sub out cable from my receiver to either one of the inputs on the sub and it should work. It did. Perhaps Crutchfield could put that information somewhere in the description or their review (unless I missed it).

Great Product

This is a fantastic subwoofer for the money. It doesn't distort even at high volume. I turn it down so it doesn't overpower the rest of my system. Sounds better than my old one for about the same money I paid 10+ years ago. I gave it 4 stars because I'm sure if you spent quite a bit more money you could get one that would qualify for a 5 star rating.